trunnion mounted ball valve

3 Tips For Selecting COVNA Automated Actuators

The automation actuator is a device that facilitates the realization of industrial automation. Automatic actuators and valves are used together in various working conditions to realize remote control and achieve the purpose of flow regulation.

As an experienced actuator manufacturer, COVNA offers a variety of actuators for you to choose from. In this article, we will briefly introduce how to choose an actuator for your reference. Hope that helps you pick the right actuator.

  1. Power Source

According to the power source, actuators can be divided into electric actuators and pneumatic actuators.

● The electric actuator can be driven on and off by DC12V, DC24V, AC24V, AC110V, AC220V, AC380V and other special power sources.

● The pneumatic actuator uses clean air as the power source to drive the opening and closing. At the same time, pneumatic actuators can be divided into spring return type and double-acting types. Single-acting pneumatic actuators are air to open, when air is interrupted the actuator will close. Double-acting pneumatic actuators are air to open and air to close.

  1. Rotation Range

According to rotation range, the actuator can be divided into quarter-turn 90 degrees type and multi-turn 360 degrees type.

● 90 degrees type actuator suitable for the ball valve and butterfly valve.

● 360 degrees type actuator suitable for the gate valve and globe valve. It is also suitable for the ball valve and butterfly valve which need a higher torque to open or close.


  1. Function

Electric actuators have a variety of styles for you to choose from.

● ON/OFF type electric actuator is for opening and closing 90 degrees. Signal control is not accepted.

● Modulating type electric actuator and intelligent type electric actuator is the same function. Both for regulating the open/close angle within 0 to 90 degrees by signal. But intelligent type actuator has an LCD display screen which could help you control and check locally and remotely easier.

● Explosion-proof type actuator, underwater type actuator and auto-return type actuator are available for special applications.

However, a pneumatic actuator is simple. Normally, a pneumatic actuator is just for open/close fully. If you want it to be modulating type or control remotely, we need other accessories to assist. Such as positioner, limit switch, F.R.L and directional control valve.

For more info or inquiries for valve and actuator, feel free to consult us at


5 Quarter-Turn Pneumatic Actuator Suppliers In Europe

Here we will introduce 5 quarter-turn pneumatic actuator suppliers in Europe for your reference. Hope it could help to select and buy a good valve.

ACTREG was founded in 1992 and is one of the world’s leading manufacturers of quarter-turn actuators. Products include rack and pinion actuators and stock yoke actuators to meet your different industry needs. ACTREG is committed to designing and producing excellent actuators, providing reliable and sustainable solutions for many industries with advanced drive technology.


Ghibson has 35+ years of experience in the valve and actuator industry and is headquartered in Italy. Over the years, Ghibson has been committed to installing, testing and maintaining valves and actuators, providing our customers with convenient and reliable services, as well as excellent fluid control solutions. Products include pneumatic actuators, butterfly valves, etc.


JJ BCN INTERNACIONAL, SA was established in 1998 and has 30+ years of experience in the field of valve automation. JJ BCN is committed to manufacturing and selling rotary actuators to meet your automation drive needs. JJ BCN is an ISO9001:2015 certified company. All products are produced in strict accordance with the requirements of the quality management system.


Alpha Pompe SpA is headquartered in Italy and is 100% made in Italy. Its main products include pneumatic actuators, pumps and other industrial products, providing one-stop industrial product solutions for many industries. Serving industries such as fire fighting systems, irrigation systems, water and wastewater treatment, oil and gas, etc.


Founded in 1968 and headquartered in Spain, Centork is one of the world’s leading manufacturers of automated actuators. Centork has offices in more than 30 countries/regions around the world to provide you with fast delivery services. At the same time, Centork is a manufacturer that has passed ISO9001/ISO9002 certification.

COVNA was founded in 2000. 20+ years of experience in actuated valves and automated solutions. We know the valve and industry deeply. Rich experience will help us to offer a solution with great value for money for you. Only cost you a half to get a product with quality equal to European brands.